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  1. Hi All, Question on running multiple pumps from a single board connection. As background, the Thermospa spa I inherited has 5 jet pumps, a circ pump, a blower, a light and a diverter valve for a wave lounge. I had no idea how 'over-featured' this tub was, but it's all mine now and I'm working through a series of issues slowly (with much help from the guys on here). On my existing board (Balboa EL8000 Mach 3), pumps 2 & 4, and pumps 3 & 5 connect to the same connector on the board with a 'Y' or splitter connector. Then the 'hot' pin on one of the split connections is jumpered straight to one of the 240V spade connections near the incoming electric hookup. Is this a common and acceptable way to run 2 pumps from a single board connection? Where the hot connection on one is coming from a different 240v connection I’m guessing that it only shares the ground with the board connector. Is there any downside to this arrangement? Does this change any of the power requirements on the board, or as long as the incoming power is 240v does it not matter? The GFCI would remain rated the same at 60W. As a follow up question, even if this is an acceptable/common practice, these pumps would need to be controlled topside separately. In addition to my main control panel (heat, pump 1, 2, blower and light), I have a single button panel for pump 4, a single button panel for pump 5, and a wave lounge panel that controls pump 3 and the associated diverter valve. My board has control connections that allow me to hook these all up and control the corresponding pumps/diverter as required. The ultimate reason for my question is how I would shop for a new PAC/board if I ever need to. When I read the specs for spa PACs or individual boards, they mention the number of jet pumps supported (never 5), but how would I know if there are enough 240v spade connections to reproduce the scenario I currently have? Then, assuming I have available 240v spade connectors for all of my pumps, how can I tell if there are sufficient topside control connections to be able to control them as needed? As of now it appears that the EL8000 is still available, but the price varies up to $450. This is more an exploratory exercise to see where the breakpoint is between replacing a board and replacing the entire PAC. This is a Thermospa and I’m continually running into challenges finding replacement parts as in some cases the part was specifically manufactured for Thermospa and has a different part number, although in most cases it just a rebranded standard part which I find out after some research. Thermospa is now defunct and this spa is coming up on 12 years old. Sorry for the long post. I’m trying to learn as much as possible to prepare for future repairs and bring my stress level over this spa down. Who said hot tubs were relaxing? Thanks, Rob
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